Yeh, I was wondering about the size of the wolf too? Are they big enough for the player to ride on? Well, I looked in the construction set and came upon a bunch of horse scripts. They are all pretty much similar, but with the names of the individual kinds of horses. So maybe you can try substituting your unique rideable wolf's name in the horsename slots and see if this might work for you. I am not a good scripter but when I need a script I try to adapt with what's already there and works. You'll have to indent it yourself - it's indented when I paste it in but not in the final answer....better yet, just hit "Quote" for this entry and it will show you the script properly indented

See I told you, where there's a will there's a way
ScriptName HorsePCPaintLeyawiinScript
Short RespawnHorse
Short TellPC
Short Mounted
Begin OnDeath
Set RespawnHorse to 1
Set Horses.OwnLeyawiinPaint to 0
Set Mounted to 0
HorseSalePaintLeyawiinRef.Enable
ModPCMiscStat 14 -1
End
Begin OnPackageEnd HorsePCLeyawiinGoHome
If TellPC == 0 && Mounted == 1
If GetInCell Leyawiin == 1
Message "Your Paint horse has returned to Leyawiin's stables."
Set TellPC to 1
EndIf
EndIf
End
Begin OnActivate
if isActionRef player == 1
If Horses.LeyawiinAtahbaPresent == 1
Set Horses.LeyawiinAtahbaPresent to 0
Set Mounted to 1
EndIf
endif
Set TellPC to 0
Activate
EvaluatePackage
End